Story perspectives

Study Reinforces Dark Matter Theory in Small Galaxies

11/11/2025

47 5

Summary

Story summary

The study by an international team led by the Leibniz Institute for Astrophysics Potsdam finds that the gravitational fields of 12 of the smallest galaxies cannot be explained by visible matter alone, reinforcing dark matter.
It challenges Modified Newtonian Dynamics (MOND), which posits gravity is determined only by visible matter.
The researchers do not determine dark matter's composition, but the results rule out some alternative theories and narrow the search.

1 of 1

Story summary

The study by an international team led by the Leibniz Institute for Astrophysics Potsdam finds that the gravitational fields of 12 of the smallest galaxies cannot be explained by visible matter alone, reinforcing dark matter.
It challenges Modified Newtonian Dynamics (MOND), which posits gravity is determined only by visible matter.
The researchers do not determine dark matter's composition, but the results rule out some alternative theories and narrow the search.